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EPC’s Phase Eleven Reliability Report adds to the knowledge base published in the first ten reports. With this report, EPC demonstrates field experience of 123 billion device hours and a robustness capability unmatched by silicon power devices.
EL SEGUNDO, Calif.— April 2020 — EPC announces its Phase Eleven Reliability Report, documenting the strategy used to achieve a remarkable field reliability record. This strategy relied upon tests forcing devices to fail under a variety of conditions to create stronger products to serve demanding applications such as lidar for autonomous vehicles, LTE base stations, vehicle headlamps, and satellites to name just a few.
Gallium Nitride (GaN) power devices have been in volume production since March 2010 with remarkable field reliability. This article details how by testing parts to the point of failure an understanding of the amount of margin between the data sheet limits can be developed, but more importantly, an understanding of the intrinsic failure mechanisms can be found. By knowing the intrinsic failure mechanisms, the root cause of failure, and the device’s behavior over time, temperature, electrical or mechanical stress, the safe operating life of a product can be determined over a more general set of operating conditions.
Power Systems Design
March 3, 2020